Sulfur Dioxide (1971) Nonattainment Areas

Data is current as of May 31, 2023
Grouped by Designation

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PRIMARY

Armstrong County: Madison, Mahoning, Boggs, Washington, Pine, PA

Hayden (Pinal County), AZ

Laurel Area (Yellowstone County), MT

Piti, GU

Tanguisson, GU

PRIMARY, SECONDARY

Salt Lake County, UT

Tooele County, UT

Warren County, NJ

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